Base class containing information common to all package items held by the package manager. This provides a very common basic set of attributes: a label, icon, and meta-data. This class is not intended to be used by itself; it is simply here to share common definitions between all items returned by the package manager. As such, it does not itself implement Parcelable, but does provide convenience methods to assist in the implementation of Parcelable in subclasses.

[Android Documentation]